In his defense there was a lot of commotion and new horses being worked in the ring, but still. So much for a relaxing ride. I'll try again tomorrow.
(As a sidenote, I've never really used a chain on Charlie but he was being so horrible I finally put one across his nose for reinforcement. Quickly learned that was the wrong thing to do and that it only made his reaction worse. I should have known, he's so sensitive to face pressure. Will not try that again).